Telegraphic receiving device



No. 846,416. IPATENTED MAB. 5, 1907'.

. I. KITSBB.

TELEGRAPHIG RECEIVING DEVICE.

:APPLIUATION FILED SEPT. 6.1906.

WITNESSES:- INVENTOR I so UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

ia-tented March 5, 1907.

Application filed September 6, 1906. Serial No. 383,4 97.

To all whom it maly eoncem:

Be it known that I, Ismon Krrsnn, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certam new and useful Improvements inTelegraphic Receiving Devices, of which the following 18 aspecification.

My invention relates to an improvement m telegra ln'c receiving devicesor relays. Its object is to translate the incoming impulses on lineswith great capacity, such as submarine cables, into sound or relay thesame to a second line.

For the purpose that persons versed in the art may practice this myinvention 1 have illustrated the same as being a phed to the well-knownsiphon-recorder, a evice usual] employed in submarine-cable work, andhave replaced the siphon proper by two light conductors, such asconductin -wires of small dimension. here the conducting liquid, whichwill hereinafter be described, is a fluid not affecting aluminium, thewire may consist of this metal; but where diluted sulfuric acid or thelike is employed it is best to use a platinum wire. The same does notneed to be more than one-hundredth of an inch in diameter.

In the drawing, Figure 1 is a perspective view of this recorder with myinvention attached thereto. 2 is a section of one of the conductingliquids employed by me.

1 is the electromagnetic part of the siphonrecorder provided, as usual,with the suprting-prece 2; but instead of having at tached to this piecethe siphon proper there are attached to it the two conductors 3 and 4.

7 is a retaining vessel, of non-conducting material and divided into twoparts, one part containing the fluid 8 and one part containing the fluid9. This fluid has to be conducting, and it is referred that dilutedsulfuric acid should e used.

The conductor 3 terminates at the lower endin the bent ortion 5, and theconductor 4 terminates in t 1e lower end in. the bent or tion 6.

10 is a retaining vessel, preferably of con ducting material. Thisvessel contains the conducting fluid l2 and the non-conducting fluid 11.The conducting fluid may also in this case consist of diluted sulfuricacid, and

the non-conducting fluid may consist of one of the lighter oils-such,for instance, as petroleum.

The containing vessel 7 is provided with the contacts -19 and 20, thecontact 19 connected through wire 18 with the source of current 17 andthe contact 20 connected through wire 21 with the source of current 16.Both sources are connected together with the positive pole through wire26, and this wire is connected through wire 15 with contact 14 of thecontaining vessel 10. Normally the conductors 3 and 4 connect with oneend with the conducting liquids 8 and 9, respectively. The other end ofboth wires just touch the conducting liquid 12. It is therefore seenthat a short circuit of the two batteries 16 and 17 is established.

is an electromagnet, such as a sounder; but instead of provlding thesounder with the usual spring I have provided the same with two sets ofelectromagnets-one near one terminal of the lever 29 and the second nearthe other terminal of said lever. The sets of electromagnets aredesignated by the numerals 23 and 27, respectively, and they are joinedby the wire 24. The circuit of the electromagnet 27 is made throu h wire28 and return 25. The circuit of the electromagnet 23 is made throughwire 22 and return 25.

As long as a conducting-path between the u per and lower reservoir isestablished the el ctromagnets 23 and 27 will not be operated upon, forthe reason that the circuits are arranged so that the part including thecon duo-tors 3 and 4 is of far lower resistance than the path embracingelectromagnet 23 or 27; but as soon as the electric continuity betweenthe u war and lower reservoirs is broken then the electromagnetconnected to the respec tive source of current will be actuated.

It is supposed that the end of the lever near the screw 31 is normallyin an upward position, and therefore the opposite end in a downwardposition. it is also supposed that the wire closing the shunt. ofbattery 17 will be actuated so as to come out of the conductinp, liquid1.2 by a positive impulse and the wire col'mccting the shunt of hulll'ry17 through an impulse of opposite polarity, and it is supposed that thepositive impulse is the signaling impulse and the llll mlso of oppositepolarity the spacing impu so.

The operation of this device is us follows:

Normally, said above, both ilac wires-i end 4 (lip with their lower endin lllkHIiOIll'lllCl lug liquid. 12. Both. batteries therefore areshort-circuited. The transmitting operator impresses new upon the line apositive iinpulse, This impulse will move the coil of thesiphon-recordr-ir in a manner so thet the lo Wer part 6 of the conductor4 will be moved out of the conducting liquid and in the region of thenonmorulucting liquid or oil lll'irougl'i this mm-12m en t the shuntaround the buttery 17 will be broken, and the circuit of thie hat te-iyineluding the electromagnet 27, will he col;- op .tive. The end of thelever 29 near the screw 31 will he pulled dowmvsrd mud will produce whatis known in telegrsphy as the downstrolte. When after u shorter orlonger period the transmittingoperator impresses upon the line negativeimpulse, w the coil of the recorderwill he sieved in e do reetion so toreplace again the lower ens {i into the conducting liquid, but move outof the conducting liquid and into the region of the non-oonducting fluidthe lower end the Wire 3.

the circuit of this battery, including the slew troinsgnet 23, will bemade operative and the lever end near the electroins-gnet 23 will bepulled downward, and therefore the end in proximity to screw 31 pulledupward, end this will produce What is technically known as the upperstroke. In telegraph-lug todsy over lend-lines the translating devicesueh as a sounder, operates in about the some manner, the den'nstrohedesigns-ting the signal, the upper ohe designating that the spacingcomma ed, and the time unit inpsing between tl clownsiroke and the upperstroke designsl lg the ch erect er transmitted, if the same is a clot ordash. in land telegrephy the opera-tor closes the key 01 a shortperiod-ssy one time unit. to de-i note a dot, and for e longer periodsay three time units to denote dose. In this system the operatorinnpresses u )(JZJL the line a positive impulse producing the downs!"eke,- and ill he desires to transmit it dot he impre upon the line inone unit of time s megs. im iulse, thereby producing the upper stroke,and if he desires to transmit a dash he allows three time units to lapsebefore impressing upon the linea negative impulse. .In such method oftelegrephy the operator always closes his message with the negativeimpulse, and the normal poslllon of the device 80 will t-herefore bealways such that the lever end near. the screw 31 will be in an upwardposh tion. Such in broad outlines is the aim of my invention; but it isobvious thetthe do tsilsof some may be varied without departing from thescope of my invention. If it is desired to relay the cable, thelocalized device can be provided with means to produce such results, andI have here only illustrated 'tv v i. In a. device of the classdescribed,means' to. operate a local circuit, seni means com- ;1 .f 11J1 Tl'irougli this movement the I shunt around battery 16 will bebroken, and

seems the temiii'rrlls of two circuits which may be operated through thedevice 30.

en": uxwero that instead of sliort-cireuiting the lmtterics Ill; and 17with the aid of the eoiu'luetors 3 and 4- the eloctromsgnets 28 end 27may be placed in, this circuit, so that through the opening or closingof this circuit these electron a-gnets may directly be operated; but. Ihave found that the arrange ment as illustrated and described ,is to bepreferred, because the movements of the wires are very small and theirsuspension very delicate. The breslnngg-of the circuit will thereforeoften produce :ipm'king,wl1i :h

detrin'ientel" for lshe successful WOIflK'lHg'Uf the'deviee,

Having nowdeecrileed my invention, whet l eiagimes new, end" desire tosecure by Lets Ietent, 15*- prising two conductors connect-ed each eleotrieelly with a separate end connected both jon conduct-lug liquid, eloo said conductors and in n lated to the device, inserted in the line,to more one orthe other oi the conductors 'in and out of the region or?the Second conducting liquid; 2. lo eorslcinstion with a telegxiepliiorwcalving cleric-e, means to operate t. ere'with s local. circuit eirljrecing translating device, said means eomprisingtwoeonductors,'opereti'v sly related. to the receiiring device, e convitlia second reuit for each of conducting liquid s operetivelyrej ductingiiuid for one terminal of eeeh of said conductors and a secondconducting fluid common to the see-end termineloi'b'oth of Ettlileonductorel, s newcondneting fluid for the second conducting fluid,al-cireuit for each of said conductors end a, translating device forsaid eiruite.

in. telegrephy, s

in the line of transmission, two conductors for some, :1 separate fluidcontact-for one to inel' of each of said conductors, a fluid Contactcommon for the other terminal of lroih sender-tors, it local circuit foreach of said conduetons said local circuit. aide ted to be! operatedthrough the movement 0. one or the otherof said conductors.

4. In telegrapliy, a receiving device, two

receiving device in conduct in operative, reletion' to the movshle p rtof said receiving'device, two local on nits, sec-l1 oi sold conductorsin operative" men tq beth of said local circuits means i trelnslatirigdev ijce adaiated to be operated j tb operate oneor the other of saidlocal cirthrough cuits through the movement of one or the i said'con'dncters. other of Said conductors. 5 In testimony whereof I. affixmy signature v 6. In gombinatifn witli a fleceivjngbilevice in presenceof two-Witnesses. two con nctors-re ate to't e move, e art a of'saidreceiving deviee, liquid contectQfoq}, I ISIDQR 21 local circuit for iWitnesses: translating device t MA Y (Y- Sm'm,

' -ALVAH Rl rmmgousirf o f said local circuits,

the movementof one .orthepther of.

